External Remote Services - T1133

(ATT&CK® Technique)

Definition

Adversaries may leverage external-facing remote services to initially access and/or persist within a network. Remote services such as VPNs, Citrix, and other access mechanisms allow users to connect to internal enterprise network resources from external locations. There are often remote service gateways that manage connections and credential authentication for these services. Services such as Windows Remote Management and VNC can also be used externally.

D3FEND Inferred Relationships

Browse the D3FEND knowledge graph by clicking on the nodes below.

        graph LR;

     T1133["External Remote Services"] --> |produces| NetworkSession["Network Session"]; class T1133 OffensiveTechniqueNode;
        class NetworkSession ArtifactNode; click NetworkSession href "/dao/artifact/d3f:NetworkSession";
        click T1133 href "/offensive-technique/attack/T1133/"; click NetworkSession href "/dao/artifact/d3f:NetworkSession";             SessionTermination["Session Termination"] -->
          | deletes | NetworkSession["Network Session"];

          SessionTermination["Session Termination"] -.->
            | may-evict | T1133["External Remote Services"] ;
          class SessionTermination DefensiveTechniqueNode;
          class NetworkSession ArtifactNode;
          click SessionTermination href "/technique/d3f:SessionTermination";

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